Environmental Management and Sustainable Development (EMSD) would like to thank the following reviewers for reviewing manuscripts from May 1, 2021, to August 1, 2021. Their comments and suggestions were of great help to the authors in improving the quality of their papers. Many authors, regardless of whether EMSD publishes their work, appreciate the helpful feedback provided by the reviewers. Macrothink Institute appreciates the following reviewers’ rigorous and conscientious efforts for this journal. Each of the reviewers listed below returned at least one review during this period. Adriano Magliocco, University of Genoa, ItalyAristotulus Ernst Tungka, University of Sam Ratulangi Manado, IndonesiaChristiane do Nascimento Monte, Universidade Federal Fluminense, BrazilChuck Chuan Ng, Xiamen University Malaysia, MalaysiaDastun Gabriel Msuya, Sokoine University Of Agriculture, TanzaniaGiacomo Chiesa, Politecnico di Torino, ItalyJephias Mapuva, Bindura University, ZimbabweJoão Fernando Pereira Gomes, Instituto Superior de Engenharia de Lisboa, PortugueseMd. Nuralam Hossain, Chongqing University, ChinaOylum Gokkurt Baki, Sinop University, TurkeyPankaj Maheshwari, University of Nevada, USATateda Masafumi, Toyama Prefectural University, Japan